A premium abstract motion asset for a website hero. Animate the exact silver and acid-green photonic filament torus in the reference: individual luminous pulses travel continuously along the curved wires, the entire knot rotates very slowly on its axis and tiny surrounding particles drift in depth. Keep its circular silhouette, central opening and dark background. Locked camera, unchanged framing, no zoom, no cuts, no text, no UI. Smooth restrained movement throughout five seconds. Preserve fine filaments without melting. Begin and end in a visually similar phase suitable for a soft loop.